<div dir="ltr"><div>Dear Srini,</div><div><br></div><div>Please try 'clean_rawdata()'. It has a flat channel removal function.</div><div><a href="http://sccn.ucsd.edu/wiki/Plugin_list_process">http://sccn.ucsd.edu/wiki/Plugin_list_process</a><br>
</div><div><br></div><div>Makoto</div></div><div class="gmail_extra"><br><br><div class="gmail_quote">On Wed, Jul 30, 2014 at 11:02 AM, Jerry Zhu <span dir="ltr"><<a href="mailto:jerryzhu@siu.edu" target="_blank">jerryzhu@siu.edu</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><div><div><div><div>Hi Srinivas,<br><br></div>Flat lines have limited variable data. So you can try:<br>
<br> devStd = std(EEG.data(:,:), [], 2);<br> if any(devStd == 0)<br> flatchan = find(devStd == 0)';<br>
</div> end<br><br></div>If you need complete codes, feel free to email me.<br><br>Good luck with your study!<br></div>Jerry<br></div><div class="gmail_extra"><br clear="all"><div><div dir="ltr"><div><span style="font-family:times new roman,serif">--<br>
Jian Zhu, M.A.<br>Brain and Cognitive Sciences<br>Department of Psychology<br>Southern Illinois University Carbondale<br></span></div><span style="font-family:times new roman,serif">Web: <a href="http://zhupsy.com" target="_blank">http://zhupsy.com</a><br>
</span><div><span style="font-family:times new roman,serif"><br>We have two halves in the brain: left and right. Nothing is right in the left. Nothing is left in the right.</span></div></div></div>
<br><br><div class="gmail_quote"><div><div class="h5">On Wed, Jul 30, 2014 at 10:46 AM, Srinivas Kota <span dir="ltr"><<a href="mailto:svkota@gmail.com" target="_blank">svkota@gmail.com</a>></span> wrote:<br></div>
</div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div><div class="h5">
<div dir="ltr"><div><div><div>Hello<br><br></div>I have a few portions of flat data in a continuous EEG. Is there any better way over visual inspection to reject those flat lines from continuous EEG? <br><br><br></div>Gwin et. al 2010, (movement artifacts during walking/running) mentioned "linearly regress artifact template from the data". What is the built-in routine in EEGLAB to perform this?<br>
<br></div><div>Best Regards,<br></div>Srini.<span><font color="#888888"><br><div><div><br clear="all"><div><div><div><div><br>-- <br><div dir="ltr"><br>***********************************************************<div>
Srinivas Kota, Ph.D<br>Research Scientist<br>
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